Concentrating apparatus.



P. T. HAMBRIO. GONOBNTRATING APPARATUS.

I APPLICATION FILED MAY 19, 1913. 1 1 00, I

Patented June 23, 1914.

2 SHEETS-SHEET l.

WITNESSES: I IA XIICA JPOJR %/%M 26" zaiferZe Tfimfin'a COLUMBIA PLANoalzAm-l c0., WASHINGTON, D. c.

P. T. HAMBRIG. GONOENTRATING APPARATUS.

v APPLICATION FILED MAY 19, 1913. 1,1 00,971 Patented June 23, 1914.

2 SHEETSSHEET 2.

COLUMBIA PLANOGRAPH C0..WASHI|- GTON. D. c.

UNITED STATES PATENT QFETQE PERLE T. HAMBRIC, OF DRYTOWN, CALIFGRNIA, ASSIGNOR OF ONE-HALF TO "WILTON E. DARROW, OF SUTTEB, CREEK, CALIFORNIA.

CONCENTRATING APPARATUS.

Specification of Letters Patent.

Patented June 23, 1914:-

T 0 all whom it may concern Be it known that I, PnRLn T. HAMBRIC, a citizen of the United States, residing at Drytown, in the county of Amador and State of California, have invented new and useful Improvements in Concentrating Apparatus, of which the following is a specification.

This invention relates to an apparatus for concentrating the metalliferous particles of value-bearing ores, and pertains especially to a type of apparatus known as canvas plants.

The main object of an apparatus of this character is to effect an efficient primary concentration, to bring up the percentage of values from say fifty cents or one dollar a ton to four or five dollars a ton, so as to render profitable a further handling of naturally low-grade ores.

The object of this invention is to provide a simple, compact, easily operable and adjustable self-washing canvas plant, which is continuous and automatic in operation, and which is provided with means for evenly distributing the pulp over the various concentrating surfaces.

The invention consists of the parts and the construction and combination of parts as hereinafter more fully described and claimed, having reference to the accompanying drawings, in which Figure 1 is a plan view partly broken away, showing the separate concentrating surfaces and their pulp distributing flumes. Fig. 2 is a section of the vertically disposed distributing fiume. Fig. 3 is a vertical cross section of the apparatus. Fig. 4; is an enlarged view of one of the distributing flumes.

Referring to the drawings: A indicates a central shaft, suitably journaled as at 2 and 8 in a stationary frame 13. Secured as at 4 on the shaft is a frame 5, upon which is mounted in superposed planes as at 6 and 6 a series of concentrating surfaces 7 and 8 to which pulp or material being concentrated is delivered from the series of diverting flumes and distributing surfaces later to be described. Surrounding the upper shaft journal 2 is a stationary annular receiving launder 9, having three discharge pipes, 1011 and 12, the pipe 10 being connected with a source of fresh water supply as at 13, while the pipes 11 and 12 are provided for the purpose of distributing the pulp into a revolving annular distributer 14, suitably secured to the shaft A. The revolving distributer is divided into four separate compartments 151617 and 18, each of which is connected with inclined flumes 15-16- 17 and 18, respectively, which in turn are connected with vertically disposed distributer fiumes 15 -16"-17 and 18, which in turn are divided into four distributing ducts 192021 and 22. The vertically disposed distributers being divided into the separate distributing ducts 192021 and 22 are positioned so as to divert the main flow of each fiume 151617 and 18 to four separate series of upper and lower concentrating surfaces, the ducts 19 and 22 being connected by pipes 23 and 24L with flumes 25 and 26, from which the pulp is conveyed to distributing surfaces 27 and 28, and finally delivered and evenly distributed upon the upp r concentrating surfaces shown at 7 and 7". The vertical distributing ducts 20 and 21 are similarly connected with fiumes 25 and 26, which convey the pulp to distributing surfaces and the lower series of concentrating surfaces 8 and 8*. From this it can be seen that the pulp discharged from ,the stationary distributer 9 into the sepa- ;rate chambers in the revolving distributer v 14 is diverted through the flumes 1516 17 and 18,'and finally delivered to a set of upper and lower concentrating surfaces indicated by the numerals 7 b and 9-8". The tables or concentrating surfaces 7 and 8 are covered with canvas or other suitable material to which the heavier particles of ore and metal will cling, while the lighter gangue or waste material is allowed to discharge from the outer edge or periphery of the concentrating tables into annular launders 29 and 80, suitably supported circumferentially of the revolving structure in the stationary frame B.

The concentrating tables 7 and 8, composing the upper and lower series of concentrating surfaces, are constructed in any suitable manner, and are here shown as removably supported upon arms 7 and 8, which are pivctally secured as at 31 and 32 in standards 33, secured in the revolving frame The frame is also provided with standards 83', having cross bars 33, pro vided with adjustable bolts 33 with which the pivoted arms 7 and 8 contact, thus providing means for adjusting the inclined position of the concentrating tables 7 and 8; this being of considerable importance when handling various materials.

Referring to Figs. 1 and a, it will be seen that the main distributing flumes l516- l7 and 18, together with the distributing surfaces 27 and 28, are provided with pulp deflectors 34, provided with flexible extensions These are provided for the purpose of evenly distributing and diverting the flow through the fiumcs and over the various distributing surfaces.

Suitably mounted, as at 35, in the stationary frame B is a hollow standard 36, provided with radially disposed inwardly extending perforated spray pipes 37 and 3S, and suitably secured on the lower nd of; the standard is a crank-arm 39, which is connected through a linl: 40 with a crank 41, forming part of a shaft 42, suitably journaled in a bracket l3, secured in the stationary frame B. Secured upon this crank shaft is a pinion 4a, which is so positioned as to inter-mesh with a gear 45, secured upon the main haft A. The revolv ing motion of the shaft A will thus be transmitted through the gear 45, pinion 44-, crank 41, connecting link 4-0 and rocker-arm 39 to oscillate the standard with connected spray pipes 37 and 38, and cause these to swing in an are over the various concentrating surfaces, as these pass the spray pipes in their revolution within the statlonary frame B.

in operation, revolving movement is transmitted to the shaft A and connected frame 5, in which the various concentrating tables are mounted, through any suitable means, as a pulley 46. The pulp to be concentrated is delivered. through a launder 47 to the statioi'iary annular launder 9, from where it is discharged through the pipes 11 and 12 into the several compartments 15- Iii-17 and 18, as these pass below the dis tributing pipes 11 and 12. The pulp is then coi'iveyed from each separate compartment to the distributing flumes l5-16l7 and 18, and diverted through the vertical ducts 19-202l and 22 to the separate upper and lower concentrating tables 7 and 8, being evenly distributed by the pulp deflectors 84:, the outer flexibl ends of which may be adjusted from time to time to secure the even distribution desired.

Referring to Fig. 1 it will be seen that the pulp to be concentrated is only delivered to the concentrating tables during one-half of the revolution, or while the compartments in the revolving distributor 14 are passing below the distributing pipes 11 and 12, and that no pulp is delivered to the concentrating tables during the remaining half of the revolution. Th cycle of operation will thus be as follows: For instance, tracing the path of the chamber 17 during one revolution,

it will be seen that the ul is delivered to the chamber 17 in the revolving distributor ll while passing below the pipes 11 and 12, causing the pulp thus delivered to be distributed to the various upper and lower series of concentrating tables during this part of the revolution. The moment the distributing chamber 17 passes below the pipe 10 it will be seen that no new material will be delivered to the concentrating tables at this point, as fresh water for washing purposes is only discharged at this point. The chamber 17 will thus receive a charge of fresh clean water equal in volume to that of the previously delivered pulp, this being deliver-ed through the pipes 13 and 10 and distributed through the fiume 17 and ducts 19-2021 and 22 to the various upper and lower concentrating tables, where it serves to remove the remaining waste or gangue on the tables. During the remaining quarter revolution of the concentrating tables within the frame, after the waste or gangue have been removed, it is desired to remove the balance, and it therefore becomes necessary to prevent the admission of pulp to the tables. This is accomplished by leaving a blank wall in the stationary annular distributer 9 at the point 9, thus preventing either the admission of pulp or fresh water to the concentrating tables. The remaining values adhering to the canvas surfaces of the tables, after the gangue or waste material has been entirely discharged, is removed by the action of the spray pipes 37 and 38, which, as before described, swing in an are about the standard 36. The arcular or oscillating movement of the spray pip-es will thus cause every part of the surface to be acted on by the spray, which is discharged with suflicient pressure to remove the values previously collected, and will thus cause these to be discharged over the edge or periphery of the several concentrating tables into separate sections in the receiving launders 29 and 30, indicated in Fig. 1. The separate value-receiving sections or laundcrs produced by providing the partitions 30 will separate the value-receiving compartments of the launders from the gangue or waste-receiving sections of the annular laun ders 29 and 30. The values thus received may be collected from time to time or con veyed to a further receiving chamber, not here shown, by a pipe 30", while the 'angue or waste materials received in the annular launders 29 and 30 may be discharged at any suitable point, not here shown.

The revolving movement of the frame and concentrating tables 7 and 8 is only provided for the purpose of distributing the pulp to the concentrating table, removing the waste materials by washing, and collecting the concentrates by further washing; and they are not revolved with sufficient speed to create centrifugal action for the purpose of assisting the flow of the pulp, suflicient flow being created by placing the various fiumes and distributing surfaces at a suitable incline, and further inclination or adjustment for inclination being secured by adjusting the angle of the supporting arms 7 and 8. It is thus possible to considerably increase or decrease the flow of pulp over the tables when handling various grades of material. The pulp thus delivered to the receiving launder is finally distributed by flowing through tht inclined flumes and distributing surfaces to the various tables, where the values and heavy particles of ore are collected on the fabric, while the gangue or waste materials are discharged from the outer edge of the tables into the annular collecting launders 29 and 30. The separation of the worthless material from the more valuable material takes place during the passage of the tables in their revolution within the stationary frame, during the period that no fresh material is delivered on the tables, the clear water from the pipes 13 and 10 being given an opportunity to remove the residue or gangue, while the spray pipes 37 and 38 are finally provided for the purpose of removing the collected values.

It is understood that the purpose of this apparatus is to make a rough or primary concentration, and is thus especially adapted to handle low-grade ores; the final product of concentration collected between the sections 3O being of sufficient richness to warrant further concentration by more efficient methods.

The apparatus constructed as here shown is continuous in operation and requires little or no attention when once adjusted, and very little power is consumed in revolving the table, as this is only moved with suticient speed to permit the removal of the concentrates, as these are collected from the several concentrating tables.

By arranging the tables in deck formation or superposed planes, as here shown, the maximum capacity is had in the minimum amount of space.

Having thus described my invention, what I claim and desire to secure by Letters Patent is:

1. Ina concentrating apparatus comprising a revolving frame having a series of radially disposed superposed independent concentrating tables, a mechanism for subdividing and distributing the pulp comprising a stationary pulp receiving launder mounted above the frame, an annular distributing launder centrally mounted in. the frame and revoluble with same, radially disposed and down wardly inclined flumes connected with the annular distributing launder, vertically disposed flumes connected with the outer ends of said fiumes and divided into a plurality of ducts, a series of distributing plates secured in the revolving frame adapted to deliver and distribute the pulp to the concentrating tables, and means for conducting the pulp.

2. A concentrating apparatus comprising a revolving frame having a series of radially disposed upper and lower decks of concentrating surfaces, a stationary pulp receiving launder mounted above the frame, an annular distributing launder mounted in the frame and revoluble with same, partition walls in the distributing launder forming several separate independent distributing chambers, radial pulp distributing flumes connected with each chamber adapted to convey the pulp to the concentrating surfaces, pipes in the receiving launder adapted to deliver pulp to the several distributing chambers, a fresh water compartment in the receiving launder, and a pipe, in said compartment adapted to deliver fresh water to, the distributing chambers.

3. A concentrating apparatus comprising a. revolving frame having a series of radially disposed upper and lower decks of concentrating surfaces, a pulp receiving launder mounted above the frame, means for conveying the pulp from said launder and distrib-.

ut-ing it over the upper and lower decks of concentrating surfaces, a series of pipes extending over the concentrating surfaces, and

means operated by the revolving frame for swinging the spray pipes in an are over the concentrating surfaces to remove the concent-rates.

at. Ina concentrating apparatus, a revolving frame, a plurality of series of independent spaced superposed concentrating tables carried by the frame, said series of tables being arranged in circular order, a distributer carried by the frame and arranged centrally of the space defined by said tables, a stationary launder mounted above the distributer, radial flumes extending from said distributer, a vertical divided flume con nected to each radial flume and arranged so as to be common to pairs of adjacent superposed tables, and an individual lateral flume for each of said pairs of adjacent superposed tables, which connect with said vertical flumes and lead to the respective tables of said pairs of adjacent superposed tables.

5. In a concentrating apparatus, a frame, a pair of lower and a pair of upper tables carried by the frame, a vertical flume common to all four of said tables arranged at the inner ends and extending across the inner sides thereof, said flume being divided into four independent ducts, a fiume connected to the inner end of each table, said last named flumes being located on opposite sides of the vertical flume, independent means extending outwardly from the sides of the flume for conveying material from the four respective ducts to the four respective flames that are connected to the inner ends of the tables, and means to convey the material to each of the ducts.

6. In a concentrating apparatus, a frame, a table carried by the frame, spraying means mounted upon a vertical axis, and means for oscillating the spraying means on said axis across the table.

7 In a concentrating apparatus, a frame, a table carried by the frame, spraying means mounted upon a vertical axis, means to r0- tate the frame, and means for oscillating the spraying means 011 said axis across the table, said means for oscillating the spraying means being operated by said frame rotating means.

8. In a concentrating apparatus, a frame, a table carried by the frame, a horizontal s ray pipe extending over the table, a rotatably mounted hollow vertical standard connected to said spray pipe, means to rotate the frame, and means connected to said standard and rotating means for oscillating the standard to cause said horizontal spray pipe to move across the table.

9. In a concentrating apparatus, a rotary frame, a stationary pulp receiver above the frame, a distributer mounted beneath the receiver, tables on the frame, means for delivering pulp to the tables during one-half of the revolution of the frame, means for delivering Water during the next quarter revolution, means to spray the tables, and means for oscillating the spraying means during the remaining quarter revolution.

In testimony whereof I have hereunto set my hand in the presence of tWo subscribing Witnesses.

PERLE T. IIAMBRIC.

l/Vitnesses JOHN H. HERRING, W. W. HEALEY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents Washington, D. G. 

